公开(公告)号：US12055500B1

公开(公告)日：2024-08-06

申请号：US17740504

申请日：2022-05-10

Applicant: National Technology & Engineering Solutions of Sandia, LLC

Inventor： Yuan-Yu Jau

IPC: G01N23/04 ,  G01N23/09

CPC classification number: G01N23/04 ,  G01N23/09 ,  G01N2223/04 ,  G01N2223/40 ,  G01N2223/505

Abstract: A method and corresponding apparatus are provided for measuring neutron spin precession in an electric field with high sensitivity suitable for practical applications in non-destructive testing, imaging, and the like. Production of a neutron beam with a polarization vector P is followed by transmitting the spin-polarized neutron beam through a sample region in which there is a target generating an electric field, polarization-analyzing the transmitted neutron beam with an analyzing direction orthogonal to P, detecting an intensity of the polarization-analyzed neutron beam; and mapping the detected neutron-beam intensity to a field-strength value for the target electric field.

公开(公告)号：US11747288B2

公开(公告)日：2023-09-05

申请号：US17279537

申请日：2019-09-25

Applicant: Topcon Corporation ,  RIKEN

Inventor： Shigenori Nagano ,  Hisashi Tsukada ,  Yoshie Otake ,  Koji Ikado ,  Yuichi Yoshimura ,  Hideyuki Sunaga

IPC: G01N23/05 ,  G01N23/09 ,  G01N23/204 ,  G01V5/00 ,  G01N23/20008 ,  H05H3/04 ,  H05H6/00 ,  H05H7/04 ,  H05H9/00 ,  G01N23/02

CPC classification number: G01N23/204 ,  G01N23/025 ,  G01N23/05 ,  G01N23/09 ,  G01N23/20008 ,  G01V5/0025 ,  G01V5/0066 ,  H05H3/04 ,  H05H6/00 ,  H05H7/04 ,  H05H9/00 ,  G01N2223/04 ,  G01N2223/045 ,  G01N2223/053 ,  G01N2223/106 ,  G01N2223/20 ,  G01N2223/204 ,  G01N2223/33

Abstract: A non-destructive inspection system 1 includes a neutron radiation source 3 capable of emitting neutrons N, and a neutron detector 14 capable of detecting neutrons Nb produced via an inspection object 6a among neutrons N emitted from the neutron radiation source 3. The neutron radiation source 3 includes a linear accelerator 11 capable of emitting charged particles P accelerated; a first magnet section 12 including magnets 12a and 12b facing each other, the magnets 12a and 12b being capable of deflecting the charged particles P in a direction substantially perpendicular to a direction of emission of the charged particles P from the linear accelerator 11; and a target section 13 capable of producing neutrons N by being irradiated with the charged particles P that have passed through the first magnet section 12.

公开(公告)号：US20220205933A1

公开(公告)日：2022-06-30

申请号：US17696256

申请日：2022-03-16

Applicant: Troxler Electronic Laboratories, Inc.

Inventor： Wewage Hiran Linus Dep ,  Robert Ernest Troxler

IPC: G01N23/06 ,  G01B15/02 ,  B65G43/08 ,  G01N33/38 ,  G01N23/12 ,  G01N23/09 ,  G01N23/083 ,  B65G15/08

Abstract: A system is provided. The system includes a conveyor apparatus configured for conveying a material and a water content measurement system positioned about the conveyor apparatus for determining water content in the material. A dimension characteristic measurement system for detecting one or more dimension characteristics of the material is provided and a computer device is configured to manipulate data received from the water content measurement system and the dimension characteristic measurement system to determine a water content of the material.

公开(公告)号：US20190025230A1

公开(公告)日：2019-01-24

申请号：US16139281

申请日：2018-09-24

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA MATERIALS CO., LTD.

Inventor： Yukihiro Fukuta ,  Yoshitaka Adachi ,  Nobuaki Nakashima ,  Koichi Nittoh

IPC: G01N23/05 ,  G01T1/29 ,  G01T3/00 ,  G01T7/00 ,  G01N23/09

Abstract: A neutron grid, comprises: a grid including: a plurality of spacers through which at least a part of first neutrons from a target passes; and a plurality of absorbers to absorb at least a part of second neutrons scattered thorough the target, the spacers and the absorbers being alternately arranged along a first direction and extending along a second direction intersecting with the first direction; and a pair of covers through which at least a part of the first neutrons and at least a part of the second neutrons pass, sandwiching the grid along a third direction intersecting with the first and second directions. A thermal expansion coefficient difference between one of the spacers and one of the absorbers is ±9×10−6/° C. or less, or Young's modulus of the spacer is 100 GPa or more.

公开(公告)号：US20180024256A1

公开(公告)日：2018-01-25

申请号：US15538389

申请日：2015-12-21

Applicant: Arktis Radiation Detectors Ltd.

Inventor： Ulisse Gendotti ,  Rico Chandrasekharan

IPC: G01T3/06 ,  G01N23/09

CPC classification number: G01T3/065 ,  G01N23/09 ,  G01T3/06 ,  G21K2004/02 ,  G21K2004/04 ,  G21K2004/10 ,  G21K2004/12

Abstract: A neutron conversion foil for being used in a neutron detector includes a substrate having a first and second side. The substrate is covered at least on one of the first and second sides with a neutron conversion layer made of a neutron reactive material and being capable of capturing neutrons to thereafter emit light and/or charged particles. The neutron conversion foil is transparent to light such that light originating from the conversion of neutrons can pass through one or several of the neutron conversion foils and thereafter be collected and detected by a light sensing device.

公开(公告)号：US09612346B2

公开(公告)日：2017-04-04

申请号：US14748171

申请日：2015-06-23

Applicant: Troxler Electronic Laboratories, Inc.

Inventor： Robert Ernest Troxler ,  Dirk M. Steckmann ,  Donald E. Weger

IPC: G01T7/00 ,  G01D18/00 ,  G01N23/09 ,  G01N23/06 ,  G01N23/203

CPC classification number: G01T7/005 ,  G01D18/008 ,  G01N23/06 ,  G01N23/09 ,  G01N23/203 ,  Y10T29/49826

Abstract: A method for calibrating a nuclear gauge of the having a source includes providing a nuclear gauge comprising a radiation source, the radiation source being coupled with a computing system with a machine readable program stored thereon containing a calibration routine. An operator places the gauge on one or more specified blocks to adjust the source within each block to one or more specified positions to initiate a count. The method includes determining that the source is at each position before each count begins, adjusting the counting times before each count begins by the program on the nuclear gauge based on each position of the source to obtain calibration information, obtaining counts at each position, storing the counts within the computing system of the nuclear gauge, and calculating for each position calibration coefficients.

公开(公告)号：US09063062B2

公开(公告)日：2015-06-23

申请号：US13414680

申请日：2012-03-07

Applicant: Donald E. Weger ,  Dirk M. Steckmann ,  Robert E. Troxler

Inventor： Donald E. Weger ,  Dirk M. Steckmann ,  Robert E. Troxler

IPC: G01N23/09 ,  G01D18/00

CPC classification number: G01T7/005 ,  G01D18/008 ,  G01N23/06 ,  G01N23/09 ,  G01N23/203 ,  Y10T29/49826

Abstract: Nuclear gauges and method of configuration and methods of calibrations of the nuclear gauges are provided. The nuclear gauges are used in measuring the density and/or moisture of construction-related materials. The nuclear gauge can include a gauge housing having a vertical cavity therethrough and at least one radiation detector located within the housing. The nuclear gauge can include a vertically moveable source rod and a radiation source operatively positioned within a distal end of the source rod.

Abstract translation: 提供了核计量器和配置方法以及核计量仪校准方法。 核计量仪用于测量建筑材料的密度和/或水分。 核计量器可以包括具有穿过其中的垂直腔的量规壳体和位于壳体内的至少一个辐射探测器。 核计可以包括可垂直移动的源极杆和可操作地定位在源极的远端内的辐射源。

公开(公告)号：US07864920B2

公开(公告)日：2011-01-04

申请号：US12469321

申请日：2009-05-20

Applicant: Peter J. Rothschild

Inventor： Peter J. Rothschild

IPC: G01N23/222 ,  G01N23/083 ,  G01N23/09 ,  G01N23/10 ,  H05G1/60

CPC classification number: G01N23/046 ,  G01N23/223 ,  G01N2223/076 ,  G01N2223/419 ,  G01T1/2985 ,  G01V5/0033 ,  G01V5/005 ,  G01V5/0069

Abstract: A system and methods for identifying contents of an enclosure such as an air cargo container. A three-dimensional image indicative of at least one of the CT number and the density of contents of the enclosure is obtained using penetrating radiation such as x-rays. If one or more suspect regions are identified among contents of the enclosure, a collimated neutron beam is activated to traverse each suspect region and fluorescent emission from the suspect region is detected, allowing material within the suspect region to be characterized based at least on the detected fluorescent emission. Additionally, the collimated neutron beam may be employed for neutron imaging of the contents of the enclosure.

Abstract translation: 用于识别诸如空运货物集装箱的外壳的内容物的系统和方法。 使用诸如x射线的穿透辐射获得指示外壳的CT数量和内容物密度中的至少一个的三维图像。 如果在外壳的内容中识别出一个或多个可疑区域，则激活准直的中子束以遍历每个可疑区域，并且检测来自可疑区域的荧光发射，从而至少基于所检测到的材料来区分可疑区域内的材料 荧光发射。 另外，准直的中子束可用于对外壳的内容物进行中子成像。

公开(公告)号：US5804820A

公开(公告)日：1998-09-08

申请号：US811309

申请日：1997-03-04

Applicant: Michael L. Evans ,  Jacques M. Holenka

Inventor： Michael L. Evans ,  Jacques M. Holenka

IPC: G01N23/09 ,  G01N33/24 ,  G01T1/36 ,  G01T3/06 ,  G01V5/10 ,  H05H3/06

CPC classification number: G01V5/101 ,  G01V5/104 ,  G01V5/107

Abstract: Apparatus for determining the density of underground formations surrounding a borehole, such as a wireline logging tool or a logging-while-drilling tool, includes a neutron source for irradiating the formations from within the borehole and at least one detector which detects neutrons and gamma rays in the borehole resulting from the irradiation of the formations with neutrons. Multiple detectors can also be used to separately detect neutrons and gamma rays. Detected neutron and gamma ray signals are each analyzed and combined to determine the density of an earth formation.

Abstract translation: 用于确定钻孔围绕地下地层的密度的装置，例如电缆测井工具或钻井测井工具，包括用于从钻孔内照射地层的中子源和至少一个检测中子和伽马射线的检测器 在由中子辐射形成的钻孔中。 多个检测器也可用于分别检测中子和伽马射线。 检测到的中子和伽马射线信号被分析和组合以确定地层的密度。

公开(公告)号：US5479023A

公开(公告)日：1995-12-26

申请号：US318691

申请日：1994-10-11

Applicant: Colin M. Bartle

Inventor： Colin M. Bartle

IPC: G01V5/00 ,  G01N23/06 ,  G01N23/09 ,  G01N23/10

CPC classification number: G01V5/0033

Abstract: A method and apparatus detects the presence of a number of substances such as explosives or drugs in a container such as luggage (10) at an airport. The containers, travelling on a conveyor (15) for example are irradiated with fast neutron and gamma source radiation (6) preferably simultaneously and preferably of different frequencies. The radiation is detected (7) and the extent to which each species of the source of radiation is transmitted through the container is measured. The measurements are analyzed with reference to the known characteristic attenuation coefficients and density properties of those substances for each species of the source radiation.

Abstract translation: PCT No.PCT / NZ93 / 00025 Sec。 371日期：1994年10月11日 102（e）日期1994年10月11日PCT提交1993年4月14日PCT公布。 公开号WO93 / 21546 日期为1993年10月28日。一种方法和装置在机场的诸如行李（10）的容器中检测许多物质如爆炸物或药物的存在。 在输送机（15）上行进的容器例如用优选同时且优选不同频率的快中子和伽马射线辐射（6）照射。 检测辐射（7），并测量每种物质的辐射源透过容器的程度。 参考已知的每种源辐射物质的特征衰减系数和这些物质的密度特性来分析测量值。